HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Paddle is a billing and payment gateway for B2B SaaS companies.
ProcessWire is an open source content management system (CMS) and framework (CMF).
Vimeo is a video hosting, sharing and services platform. Vimeo operation an ad-free basis by providing subscription plans.